Masternak KOs Siproshvili in four

Former European cruiserweight champion Mateusz Masternak (31-1, 23 KOs) scored a fourth round knockout victory over Sandro Siproshvili (27-18, 13 KOs) at the Arena Nord in Frederikshavn, Denmark. Masternak took control of the early rounds before landing a big right hand in the fourth, which sent his opponent to the floor and down for the count. Masternak was coming off his first career defeat against Grigory Drozd last October in Moscow.